In the spring of 1996 with funding from the National
Aeronautics and Space Administration (NASA), KARS began producing
a bi-weekly map series called the GreenReport&reg that measures vegetation
conditions across the United States. The GreenReport&reg is produced
using Normalized Difference Vegetation Index (NDVI ) images compiled
at EROS
Data Center from Advanced Very High Resolution Radiometer (AVHRR)
imagery. Using these images, five bi-weekly maps are created to illustrate
current vegetation greenness and reletave condition: